A54SX72A-FG484 - 108K-Gate Antifuse FPGA 484-BGA | Microchip
MPN: A54SX72A-FG484 ✓ نشطA54SX72A-FG484 نظرة عامة
An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently configured at power-up by blowing programmed antifuse links. Unlike SRAM-based FPGAs, antifuse devices are non-volatile, require no configuration ROM, and are inherently resistant to configuration readback, making them a class of programmable logic within the broader power/control IC hierarchy used for glue logic, bus interfacing, and state-machine integration.
Key features include 72K dedicated gates (108K system gates), deterministic 217 MHz performance, low static power consumption typical of the SX-A family, and 360 user-available I/O on the 484-ball package. The antifuse architecture provides single-chip secure configuration and immediate functional output at power-on, eliminating boot-time configuration delays critical in embedded control systems.
Technically, the SX-A family combines a fine-grained logic module architecture with segmented antifuse routing, achieving high gate utilization and fast pin-to-pin delays. The 0.25um CMOS process balances speed and power, while the quadrant clock inputs (A, B, C, D on the A54SX72A die) support low-skew clock distribution across bottom-left, bottom-right, top-left, and top-right die quadrants per the SX-A family datasheet.
Typical applications include industrial control, telecommunications line cards, avionics and defense systems requiring non-volatile, secure single-chip integration, and legacy designs where SRAM-FPGA configuration overhead is unacceptable. The large 360-I/O count suits bus-bridge and backplane-interface designs.
Designers should note the commercial 0C to +70C operating range of the standard FG484 grade; select -I or -M speed/temperature grades for extended environments. The 2.25V to 5.25V supply tolerance on I/O rings per distributor data should be confirmed against the SX-A datasheet for your specific I/O standard.
This page synthesizes distributor pricing, verified drop-in alternatives within the same 484-ball footprint, and practical design notes not consolidated in the manufacturer datasheet.
بدائل مباشرة لـ A54SX72A-FG484 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع A54SX72A-FG484 (نفس عامل الشكل والبصمة) — يختلف في Package, RoHS Status, Operating Temperature, Process Technology, Speed Grade.
A54SX72A-FG484A
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FG484I
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FG484M
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FGG484A
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FGG484
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FGG484I
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FGG484M
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A54SX72A-FG484 الحدود القصوى والخصائص الكهربائية
| Family | SX-A (antifuse FPGA) |
| System Gates | 108000 |
| Dedicated Gates | 72000 |
| Logic Cells (Modules) | 4024 |
| Maximum System Frequency | 217 MHz |
| Process Technology | 0.25um/0.22um CMOS |
| Core Supply Voltage | 2.5 V |
| Supply Voltage Range | 2.25 V to 5.25 V (per distributor data) |
| User I/O | 360 |
| العلبة | 484-Ball FBGA (FG484) |
| نوع التركيب | Surface Mount |
| درجة حرارة التشغيل | 0C to +70C (commercial grade) |
| Programming Technology | Antifuse (non-volatile, one-time programmable) |
| Packaging | Tray |
| حالة RoHS | Non-compliant (per Microchip USA listing) |
| Product Status | Active |
دليل تكوين أطراف A54SX72A-FG484 484-ball fbga (fg484)
تكوين الأطراف لـ A54SX72A-FG484 (حزمة 484-ball fbga (fg484)). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ A54SX72A-FG484.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
A54SX72A-FG484 مناسب لـ 6 التطبيقs: Industrial Control and Automation, Avionics and Defense Systems, Telecommunications Line Cards, Legacy System Obsolescence Redesign, Test and Measurement Instrumentation, Secure Single-Chip Embedded Control.
Industrial Control and Automation
In industrial control systems, the A54SX72A-FG484 integrates glue logic, bus interfaces, and sequencing state machines into one 108K-gate antifuse device. Its instant-on antifuse fabric means PLC I/O cards and motor-control backplanes are functional within nanoseconds of power application, with no configuration device to fail in electrically noisy factory environments. The 360 user I/O handle parallel fieldbus, backplane, and sensor aggregate connections, while the 217 MHz rating covers high-speed counters and interlocks. Designers should budget for the commercial 0C to +70C range or specify the FG484I grade for enclosed-cabinet temperature extremes.
موصى به
Avionics and Defense Systems
The A54SX72A-FG484's antifuse architecture suits avionics and defense applications where configuration security and single-event robustness matter. Unlike SRAM FPGAs, the programmed interconnect cannot be read back, protecting proprietary bitstreams, and there is no configuration upset mechanism from radiation-induced configuration memory flips. The A54SX72A-FG484M military grade shares the same 484-ball footprint for programs requiring screened parts. Typical roles include missile guidance interface logic, radar signal pre-processing glue, and MIL-STD-1553 bus bridging, using the die's quadrant clock inputs for low-skew timing domains.
موصى به
Telecommunications Line Cards
Telecom line cards and backplane adapters benefit from the A54SX72A-FG484's 360 user I/O and deterministic 217 MHz timing for SONET/SDH framing glue, T1/E1 aggregation, and hot-swap control logic. The antifuse fabric draws low static power, reducing the per-slot power budget in high-density chassis, and the instant-on property lets line cards assert management-signal states immediately at insertion, meeting carrier hot-swap sequencing requirements. Designers should confirm I/O standard support (2.25V-5.25V ring tolerance per distributor data) against the SX-A datasheet for the specific backplane voltage.
موصى به
Legacy System Obsolescence Redesign
For engineers maintaining legacy boards built around Actel SX-A devices, the A54SX72A-FG484 family remains active per Microchip's product page, offering a same-footprint consolidation path when discrete glue logic becomes unavailable. Multiple functions previously spread across PALs, counters, and bus transceivers can be merged into the 108K-gate antifuse die without PCB respin when migrating between FG484 grade codes (base, A, I, M). The 0.25um CMOS process and 2.5V core keep power characteristics predictable for boards designed decades ago, and design tools support SX-A netlist re-import.
موصى به
Test and Measurement Instrumentation
Bench and automated test equipment uses the A54SX72A-FG484 as deterministic trigger logic, timing sequencer, and bus interface fabric. The antifuse architecture provides jitter-free, configuration-independent timing paths - the 217 MHz system rating and fixed routing delays make timing closure repeatable unit-to-unit, unlike SRAM FPGAs whose routing varies little but whose configuration controller adds boot uncertainty. With 360 I/O, one device can terminate multiple instrument busses, GPIB/UART bridges, and high-speed counter inputs, and the FG484 ball grid package aids signal integrity with distributed power/ground balls.
موصى به
Secure Single-Chip Embedded Control
Applications requiring tamper-resistant programmable logic - secure comm boards, payment terminals, cryptographic equipment glue - leverage the A54SX72A-FG484's antifuse one-time programmability. Because the programmed interconnect physically cannot be read back and no external configuration flash exists, attackers have no bitstream to extract, a security property SRAM FPGAs cannot match without additional encryption silicon. The 108K system gates implement state machines, key-handling peripheral glue, and sensor interfaces, while instant-on behavior ensures security-critical logic is active before the host processor completes reset, closing boot-time attack windows.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ A54SX72A-FG484 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | A54SX72A-FG484A | A54SX72A-FG484I | A54SX72A-FG484M | A54SX72A-FGG484A | A54SX72A-FGG484 |
|---|---|---|---|---|---|---|
| Package | 484-FBGA (FG484) | 484-FBGA (FG484) - same footprint | 484-FBGA (FG484) - same footprint | 484-FBGA (FG484) - same footprint | 484-FBGA (fine-pitch GG) | 484-FBGA (fine-pitch GG) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 108000 | 108000 |
| Logic Cells | 4024 | 4024 | 4024 | 4024 | 4024 | 4024 |
| User I/O | 360 | 360 | 360 | 360 | 360 | 360 |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Die Revision | Original (non-A) | A revision (refreshed production) | Per grade ordering code | Per grade ordering code | A revision | Original (non-A) |
أبرز الفروقات
- Instant-on antifuse configuration (مقابلA54SX32A-FGG484)
- Highest I/O density in SX-A 484-ball lineup (مقابلA54SX72A-FGG256A)
- Multiple temperature grades on identical footprint (مقابلA54SX72A-FG484M)
- Non-volatile security vs SRAM FPGAs (مقابلA54SX32A-FGG484)
ملاحظات التصميم
The A54SX72A-FG484 core runs from 2.5V while the I/O ring supports a 2.25V-5.25V tolerance per distributor data. Estimated: antifuse FPGAs draw very low static current, but dynamic power scales with clock frequency - at a 100 MHz average toggle rate the SX-A family typically remains in the sub-watt class, but you should run the Microchip power calculator with your actual netlist rather than relying on estimates. Provide independent, well-decoupled core and I/O rails; distribute a 0.1uF ceramic per power ball group plus bulk 10uF near the device.
The 484-ball BGA requires controlled-impedance multilayer PCB with via-in-pad or dogbone breakout, typically 1.0mm ball pitch. Follow the A1 ball marker orientation from the SX-A datasheet mechanical drawing exactly - a rotated footprint is the most common fatal layout error on BGA FPGAs. Allocate the four quadrant clock balls (A/B/C/D per the datasheet) to low-skew clock sources and route them with matched lengths if multiple quadrants share a frequency relationship. Simulate ball-out escape routing before committing stackup.
Antifuse devices are one-time programmable: there is no way to reprogram an A54SX72A after programming, so lock your design and timing sign-off before submitting to the programmer. The commercial-grade FG484 is rated 0C to +70C only - deploying it outside this range without moving to the -I or -M grade will violate the datasheet. Finally, confirm RoHS exemption status for your program before ordering, since this ordering code is listed RoHS non-compliant by Microchip USA.
With 360 user I/O, simultaneous switching output (SSO) noise is the dominant signal integrity risk. Estimated: distribute ground-return balls among high-toggle-count I/O banks and limit the number of outputs switching on a single edge per bank, following the SX-A family datasheet SSO guidance. Use series termination (typically 22-33 ohm) on high-fanout buses leaving the BGA, and keep stub lengths under 10mm on the breakout layer to preserve the 217 MHz-class timing margin.
معلومات الامتثال
RoHS non-compliant status per Microchip USA product listing for A54SX72A-FG484; this legacy commercial-grade code uses lead-containing package finish. Confirm current compliance documentation with Microchip for your program's exemption requirements.